Question

Find the area of the circle to the nearest tenth. Use 3.14 for π.

Answer 1

Answer:

Step-by-step explanation:

Use the formula for area of a circle

A = $\pi r^{2}$

The diameter is 8ft, if there was only a line from the middle to the edge of the circle, then it would be radius

The radius is half the diameter so divide 8 by two and you get the radius

Plug in the radius into the formula

A = $(4ft)^{2} \pi$

the parenthesis indicate you aren't only squaring the ft, but also the 4

4ft * 4ft = 16$ft^{2}$

(remember you are also multiplying the unit, in this case feet)

A = $16ft^{2} \pi$

there aren't parenthesis here, meaning you aren't squaring the 16

A = 50.24$ft^{2}$